Stenographic writing-machne.



M. L. MASTEN.

STENQGRAPHIC WRIHNG' MACHINE. APPLICATION FILED APR.24, I914.

1,295,782. Patented Feb. 25,1919.

7.SHEETS.SHEE[ 1.

M. L. MASTEN. STENOGRAPHIC WRITING MACHINE.

Patented Feb.25,1919.

YSHEETS-SHEET 2- 7 APPLICATION FILED APR.Z41914. 1,295,782.

M. L. MASTEN.

STENOGRAPHIC wmnms MACHINE. APPLICATION FILED APR. 24'. 191 4.

1,295,782. Patented Feb. 25, 1919- 7 SHEETSSHEE[ 3- 40 1/40. v. z v

v I :Z

M. L. MASTEN. STENOGRAPHIC WRITING MACHINE.

PFucATloN FILED'APR.24. \91 4.

1 ,295,782. Patented Feb; 25, 1919.

M. L. MASTE N.. .STENOGRAPHIC WRITING MACHINE.

APPucATmM FILED APR. 24, 1.914,

Patented Feb. 25, 1919;

M. L. MASTEN.

'STENOGRAPHIC wmnma. MACH'INE.

APPLICATION FILED -APR.24, 1914.

' Patented Feb. 20, 1919.

ISHEETS-SHEEI' 6- M. LVMASTEN. I 1 STENOGRAPHIQ wm ms MACHINE.APPLICATION FILE-D m. 24.- 1914.

Patentedleb. 25, 1919.

TSHEETS-SHEET 7- springs operate to normally hold the key-- otal jointbetween the frames 17 and 21. A pair of latches28 are pivoted at 29 'onthe frame 21, and these latches are provided with hooked ends adapted totake over pins 30 on the frame 17.v The latches are moved downwardlyinto engagement with stops 31fby' spri'ngs 32,.each' attached, at oneend, to

thelatchand, at the other end, to'the frame 21. The ends of the latchesare beveled as shown M333, and provided with laterally turned lugs 34-tofacilitate their operation. The machine thus comprises a stationaryframe-work and a movableframe, pivoted thereto and adapted to bemovedjn'to and 15 out of cooperative relation therewith. By lifting'thelatches out of engagement with I the'pins'30, the frame 21 may be-swungrear-' wardly, and when moved backinto position, ,-the latchesautomatically engage and snap over the pins 30.

The type me0hcnism.Referring more particularly to Figs. l'to 4 inclusiveand 7 to 10 inclusive, 40'designates ashaft connecting the sideplates11. This shaft forms a pivot for two series of key bars, the key bar ofone series being shown in Fig. 7, and the key bar of the other seriesbeing shown in Fig.8.- Akey bar 41, pivoted at 40, is provided with akey 42 and a rearward-1y extending arm -43 having a laterallyextendingheaded pin 44 engaging the forked arm 45 of a hammer or platenmember 46 pivoted on a shaft 47 mounted in and connecting thes'ideplates 17. The hammers are arranged close together, as shown inFigs. 1, 3 and 4, and these hammers are spaced by washers or collars onthe shaft 47, as is usual in. devices of this character. The key barsare spaced fartherapart on the shaft than the hammers, and the arms 43accordingly converge toward the center of'the machine, as shown inFig. 1. Each key bar is providedwith a spring 48 connected, at one end,to the arm I 43 and, at the other -end,-to a bar or shaft 49 connectingthe side plates 11. These bars in engagement with the crossbar 16, thiscross bar acting as a stop and being provided with a cushion, as shownin Fig. 9.

Ak'ey bar'50, pivoted at 40, is provided with a key '51. and adownwardly and rear- Wardly extending arm 52, 53, jointed at 54 to alink55, which is, in turn, jointed at.56 to a type-bar or carrier 57.This type bar orcarrier is provided with two series of type j 58 and 59respectively. The key bars 41 and are arranged side by side on the shaft40, and alternate so that a key bar 50 will be arranged laterallyof akey bar 41. A forwardlyextending part 60 of the key bar 50 lies-loveralaterally extending lug 61 on the] .adjacentkey bar 41, so thatdepression of the 'key-ibar 50 will cause the adjacent key bar 41 to-be'swung On its pivot. Each key I bar 50'ha s a spring 62 connected, atone end,

which" forms a stop, and is-provided vvitlr; a suitable cushion, asshown in Fig.= .9-.g..:The

type bar Whose connected key bar 50 is posi 110 inally be atthe printingpoint-opposite the to thearm .52 and, at the other end, to the v crossbar 14, and is arranged to hold the key bar in engagement with the crossbar- 13,-

76 type bars 57 j are arranged close together o'pposite the hammers46,;and the arms 52, 53 accordingly converge toward the center of themachine, as shown in Figs. 1, 3,4 and 5.

Thekey bars 41 and 50 are maintained, in spaced relation in pairs-onthe'shaft' 40 by means of collars, as is usual in 'mach'ines of j thischaracter, and :the cross bars14'and'1-5' are slottedat' 63 and64'respectively,*and as shown in Figs?) and 4,' "t o'guide the key .barsin their movements. I j i Each type bar 57 is slotted pr forked, as]shown at 65, to embraceland engage the deep cross bar 22. A pair ofcross bars or rods 1 66, connecting the side plates 21, have strungthereon plates 67 and 68 respectively. The

plates 67 engage the-sides-of the type bars and hold them in spacedrelation, while theplates 68 space the guide plates 67 and engage therear edges of the'type bars to inci-' dentally take up. the impact ofthe hammers on the type. The filling plates 69 space th e' i type-barsfrom the sides 21 of the frame. 'A I crossbar 70, engaging the slot-s71, maybe provided to further their movements. r I Certain of thecenter. type bars 72',- asshown in- Fig. 6, have no corresponding keys51, and these type bars are accordingly fixed guide the type bars inagainst vertical movement,- as' shown in Fig.22. Y

The type bars 57 and 72 are maintained in spaced relation opposite thecorresponding hammers 46, so that the hammers will cooperate with thetype thereon to make an impression. The type bars 57 are so arrangedwithrespect to the hammers 46,- that. a hammer 46 will be in" alinementwith that tioned adjacent to the corresponding'keybar 41 of the hammer.In thisway, the depres sion of any key 51--will operate the hammerpositioned in alinement with the type bar connected to that key; Theparts are so con- 'structed that the upper type 58' willnorcorresponding hammer 46. When, there fore, a key 42 is depressed, theconnected hammer will cooperate with the upper type 1 58 to make animpression.

to cause the connected hammer 46, inaline-'- -n1ent with the shifted keybar, to cooperate with the type 59 and make an impression. By referringto Figs. 9 and '10, itwillbe noted that there is a slight clearancebetween the key bar 60 and the lug 61 on the 1310 "I 0 a When, however,12o

. feral groups. One; gr 1 letters, and the other adjacent key bar 41.

' bar 49 so-as to normally swing the wer type 59. will vided toinsurethat th fore the hammer beat the printing point,

46coiiperates therewithto' mak an impres-l I order toreverse the ribbonfeed, theJclamp ,mg action is reversed, Whenever-Jonson sion,.-f L"-seen' that the keyboard com rovided with llables and figures. Thesyllable vgro is positioned at a lower levelt-hanltheletter group. 'Theletter group comprises the -keys 42 .whiehx are connected tooperate'thehammers, while the wh h) The. letter keyslf of the letter.group positioned between the keys of the syllable group, are

connected jto operate hammers, pos tionedv the key bars 72. It will,therefore,

syllable group comprises the keys 51 are connectedg to shiftthe typebars.

opposite v be seen that the depression ofa key in the letter group willsimply operate, the ,ham-

mers to cause them to cooperate with the upper type 58, which correspondto the letters on the letter keys, withoutshifting the type bars. will,

.however, 'shiftfthe eorresponding type bars to aline the type59,corresponding to the syllables on the syllable keys, with thehammers, and operate the corresphnding hame I shaft 113, loosely mountedin theslde plates 21.- Each end of the shaft 113 has rigidly mers tomake an imp resslon.

The ribbon feed mechanism. Referring more particularly to'Figs. 1 to 4inclusive and 15, designates a pair of arms pivoted on the shaft 40'andconnected, at their lower ends, by a cross bar. 76. The arms 75 haveforwardly extending parts' 77 and .78 connected and braced by a crossbar7-9. 'A

arm 77 with the cross arms 75 to the right, Fig.'2, and hold the crossbar 76 in engagement with the key bars 41 and 50. Another spring mayconnect the arm 78 with the frame. -A pawl 81 is pivoted on the arm 77andlismaintained by a spring 82 in spring connects the engagement with aratchet 83, on one'en'd .of a shaft-84 mounted for rotation mum sideplates 11. The Shaft .84 is provided with 'mechanism for rotating theribbon spools; and since the mechanisms are duplicate, only one will bedescribed in detail. A-worm 85 on the shaft 84 meshes with a worm wheel86 on an arbor 87 mounted for rotation on a verticalstem 88 riveted tothe cross bar 16 and provided with a collar 89 to support the armor. Thearbor 87 has a reduced part 90 adapted t-o receive'the rib bon spool 91,which is adapted to rest on the flange 92, and the end of the reducedpart 90 is threaded to cooperate with a.

clamping nut 93. The ribbon' spool is arranged to revolve on the arbor87, but is adapted to be clamped thereto by tightening the nut 93. Theribbon 94 passes from one spoolover guides 95 .on the side plates 17 tothe other spool. If one ribbon spool is .clearaiiceisprm p w v isjjlonlylightly clamped".toyitslarbor; thfl ribbon" wil-l'windfrom the looselyclamped .spool on tofthe-ti'ghtly clamped spool. :lni

eferring to Figs. 2, it will be i sestw'o gen- Operation of. thesyllable keysfirmly clamped to its arborlwhile the other more keys aredepressed; the 'engagefiient of q 81 to ratchet over the ratchetteeth,and upon the key barfor key bars withflthe'. cross bar 7 6w'illrai'sejthearm 77 and cause' the pawl release of the key'brkeys, thespring-.80 will 1, 2, 17 and 18, designates an'e tension of the-arm"-77,..and this extension is pro- .vided with' a laterally.projecting. pin .102,

engaging the forked end 103 of a bell crank lever 104, pivoted at 105 onthe side plate 21'. A'pawl 106 on the arm 104 'is maim tained by aspring 107 in engagement with a v ratchet 108, connected to one end of ashaft 109, mounted to. rotatein the side plates 21,

and having mounted thereon a paper. feed roll-1'10. A pressure roll 111is mounted in a pair of arms 112, rigidly connected to a connectedthereto an arm 114 provided with .a .fingerpiece 115. A spring 116 iscon-.

nected, at oneend, to a pin.117 on the arm 112 and, at its other end,'toa pin 118011 the side plate 21. [Oscillation of the: arms 75, throughthe medium of the key bars, will cause an oscilla-tionof the bell cranklever, and this will, in turn, cause a vertical reciprocation of thepawl 106. When one of the'keys is depressed, the pawl 106 will be raisedto ratchet over theflteeth on the-- ratchet 108 and when the keys arereleased,

the spring 80, returning the bell crank lever,

will return .the pawl 106 and cause to rotate the feed roll 1 l0 onespace'to feed the paper. It will, therefore, b e seen that. g

the paper is fed to space for a line, after the completion of'theprinting operation. The

shaft 113, these springs will then operate to hold the pressure roll inraised position. A shoulder 119 is provided on each arm 114 to engagethe pin 118 and act as a stop when the pressure roll is-raised. The pawl106 I is provided with a finger piece 120, whereby it may be held out ofengagement with the ratchet, and the shaft 109 is provided with aknurled knob 121 for manual operation;

Two; space plates are provided. One of thesespace plates 122 ispositioned in the letter-groupofkeys, .while the other space plate 123is positioned in front of the key board. .Thespace plate 122extendslengthwise of themachine, while the space plate similar in shapeto the 'keybars 41, except that the hammer operating arins 43 are,

omitted. Depression of either space plate will, therefore, operate tospace the paper and the ribbon withoutprinting.

T/ze paperrewindz'ng' mechanism.- A

shaft 125, provided with a knurled head 126 passes through one sideplate 17 and screws into the other side plate. This shaftisfarranged topass through the core of a paper supply roll 12'? and removably supportthis paper roll in position .between the side members. Suitablemechanism may be provided for frictionally retarding the roll,

orthe fit of the corevwith the shaft 125 may be'made sufiiciently tighttoretard the roll.

The paper strip 128vpasses from the supply roll 127 under and over thedollars on the shaft 47, which act as guides, between the ribbon and thetype bars, and between thefeeding'and pressure rolls 108and 11 1're- Ispectively. The stripthen is wound on a rewinding roll carrier 129,which comprises I a pair of side flanges and a core. This carrier ismounted on a shaft/130 reduced in diameter to take into slots 131' inthe side plates 21, this shaft being maintained in position by springclips 132. The shaft 130 has an enlarged collar 133, against which bearsa ratchet'134, loosely mounted on a reduced part 135 of the haft. Afriction Q A, pawl 139 is mounted on an arm 140 of washer 136 bearsagain 'the ratchet 1 34, and isengaged by a collar 137 which is, inturn, clamped'by,a-nut 138, so asto frictionally connect the ratchetwith the shaft.

the bell cranklever, and is held in engage: ment with the ratchet by aspring 141. The

plate 23 has a sharp serrated part 143 for cutting the paper strip.

' Oscillation of the'bell crank lever will cause an intermittentrotation of the rewindingroll' 1 29.' When a'key or a space bar-isdepressed, the pawlv 139 will ratchet over the ratchet-130,. and whenthe key-or space "printed in a single line ofprinting acrossthe paperstrip, so that each line of printing bar-is released, the pawl willoperateto (engage. the ratchet and move the rewinding roll, un-dertheaction of the spring 80.: It will, therefore, be seen that the rewindingroll, as well as the'paper feed roll and the ribbon feeding roll, isoperated afterthe printing operation, and after the release of the'keysor spacedoars. Asv the diameter 5 of the rewinding roll increases,the, an ul platen member, and the 'ali'ned hammer or platenmemberwill beactuated to cooperate operation.

will represent the characters corresponding to the keys depressed atthat stroke.

movement must, of course, decrease." In

view of the frictional connection between the ratchet and the rewindingroll, this ratchet will slip more and more as the diameter of the rollinereasesso'as to keep the paper strip taut.

me0ham'sm;Any n]1mber Operation of of' the keys, in either theletter orthesyllable group, may be depressed at a single stroke to cause thecooperating type carriers and hammers or platen members to concurrentlymake impressions. "All of the keys of either group may, in fact, bedepressed at the same time. A key of one depressed, the hammer or platenmember will be operated to cooperate with the upper .type on the typecarrier, while, when a key of'the syllable group is depressed, theconnected type carrier will be shifted to aline the lower type thereonwith the hammer or with the lower type. The depression of any I one ofthekeys in either group will move the connected arms 75 and 77 to placethe springs 80 undertension so as to shift the actuating pawls for theribbon =feed, paper feed, and paper rewinding mechanisms over theircooperating ratchets. As soon as the depressed key is released, thesprings 80 will return the arms 75 and 77 and cause. the

The ribbon and the spacing, at the completion of-the printing The actionwill be the same whether one orall of the keys-are depressed. Moreover,the action of the ribbon feed and I the paper feed and rewindingmechanisms is the same when either of the space plates is lpawl's tomove the ratchets one space, and I thus feed or space thejribbon, thepaper, and the rewinding roll. paper are thus spaced, the latter forline depressed. Itwill be noted that, as long as one key of eithergroup, or even a space key,

bon, as well as the paper, will remain immovable,- even though any ofthe other keys are successively depressed and released.

. ismaintained in depressed position, the rib- 1 Any number ,ofcharacters may, therefore, be-printed on a line by holdingv one ofthel'keys depressed and then by successively depressing'the other keys. Thecharacters correspondingto the depressedkeyswill be The feed ofthe-ribbon can :bereversed as pointed out-by loosening onenutlandtight-.

feed carrbeadjusted manually by the knob has " 121, by throwing'the pawl106 out of co- I operation with its ratchet.- .Moreover, 'by

' raising the pressure roll and ad uSting the rewinding roll, the papercan be adjusted with respect to the paper feed for spacing the paper.Therewinding roll can be read ily removed from the swinging frame byraisingthe clips. ,When this rewinding roll roll, the latches 28; areraised out of engage-f is 'rem'oved -thepawl 139 will beheld by itsspring 141 against astop 146 on the frame.

It will be noted that the supply roll 127 is positioned in. the machinebetween the keys and the connected type, carriers. 'The connectionsbetween the keys and "the type carriers must, therefore, pass around.the supply roll. In] order to. remove the supply inent with theircoiiperating pins or keepers 30, and by then swinging the frame 21backward, the roll will be'exposedfor removal,

whichv is readily accomplished by removing the roll shaft 125. It willbe noted-that the ,pivotal connections 27, between the frames 21 and17are concentric with thepivotal connecti0ns'54 between the key "bars andthe type carriers; Thispermit's the frame ll-to swing backwardlyor'forwardlywithout disturbing the relation'of the, type carriers withmembers.

respect to the cooperating hammers or platen When the" frame 21 is swungframe 21 is swung back into cooperative relation with the frame 17, thefork and the j pin will move automatically into engage- 'ings.

ment, the ends of the fork being slightly rounded to permit thisengagem'ent. With this construction, therefore, the connections betweenthe key bars and the type carriers are placed in the machine below theprinting point, so as to be entirely concealed. It is obvious that themachine may be provided :W-ltll a suitable inclo sing casing,

which, however, is not shown in the draw- It is obvious that variouschanges may be made in the details of the construction of themachine,Without departing from the spiritof this invention, and it is,therefore,.

to be understood that this invention is not the specific detailsdescribed and shown.

Havin thus described the invention, what is claime is: I

1. In a stenograph c writing machine, the

combination with a paper carriage, of a series of type carriershavingthe type thereon arranged in a printing line, each carrier beingprovided Witha plurality of type, said. carriers being mounted forindependent and concurrent shifting movement with respect r l to saidcarriage, to position one or more of said type in the printingline,aseriesof character keys connected to independently and concurrentlyshift said type carriers and saidcarriage relatively, whereby either ofthe type on a carrier may be positioned I for printing, of a series ofmovable. platen means, said platen means cohpe'ratlng concui'rently'withthe plurality of type on the carrier, oneof said keys shifting a typecar-v rier and moving its associated platen means, another ofsaid keysonly moving the platen means.- Y J r 2. A stenographic writingmachinecomprising a paper carriage, a' series of type carriers havingthe type thereon arranged in a printing line, each carrier beingprovided with a pluralityof type, said carriers being mounted forindependent and concur rent. shifting movement with respect to saidcarriage, to position one-or moreof said type 1n the printlng line,a-ser1es of -character keys operable independently and concurrently, ofa series'of movable platen means,

' said platen means cooperating concurrently with the plurality-of typeto make an impression, one of said keys shifting a type carrier andmoving its associated platen means, and another of said keys only movingthe platen means, and means operated by said keysfconnected toindependehtly and concurrently shift said type carriers and saidcarriage relatively, whereby either of the type on a carrier may bepositioned for prmtmg.

3. In a typewriter, the combination with a series, of type carriers eachprovided witn a plurality of ty e, of a series of-movable platen means,sai platen means cohperating concurrently with a'plurality of said typeto make an impression, and a plurality of keys for each carrier, one ofsaid keys shifting a type carrier and. moving its associated platenmeans, and another of said keys only moving the platen means.

4. In a typewrlter, the combination with .a .series of type carrierseach provided with a plurality of type, of a series of movable platenmeans, said platen means cohperating concurrently with a plurality. ofsaid ty e to mike an impression, and a plurality of lceys for eachcarrier adapted to cause said platen means to cooperate with the type onthe carrierto make an impression.

5 In'a typewriter, the combination with a series of type carriers, eachprovided with aplurality of type, of a series ofmovable platen means,said platen means cooperating concurrently with a plurality of said typeto make an impression, and a plurality of keys for each carrier, one keybeing connected to shift its carrier, whereby either of the type onacarrier may be positioned for printing.

6. In a typewriter, the combination with a series of type carriers, eachprovided with a plurality of type, ofa series of ,movable keys foreach-carrier, one key belng. connectedto cause said platen means tocooperate vw'ith'one type, and the other 'ke'ybeing connected to shiftthe carrier'and'inove itseassociated' platen means into'position for CO?operation with the other type on its carrier. 7. In a typewriter, thecombination with a series of type carriers, eachprovided with aplurality of type, of a series of movable platen means, said platenmeans cooperating ficoncurrently with a pluralityof said type to makean-impr'esslon, and a plurality of keys-for each carrier, one key beingconnected to cause said platen means to cooperate with one or the otherof the type, and the other key being connected to shift its carrier toposition one orthe other type thereon in" position for cooperation withits associated I platen means and said type carriers ,rela

-' platen means.

8.- In a typewr1ter,thecombination with a series of type carriers, eachprovidedwith a plurality of type,,of a'series of movable platen means,said platen means cooperating cOncurrently with a plurality of said typeto make animpres'sion, and a plurality of keys for each carrier,each keybeing connected to move its carrler and said platen means relatively, tomake an, impresslon, and :one 'key being connected to shift its carrierand said platen means relatively to position one type in printingrelation with respectto associated platen means.

9. In a typewriter, the combination with I a series of type carrier's,each provided with a plurality of type,-'of a series of movableplaten'means, said platen means cooperating "concurrently with aplurality of said ty e, a key for each carrier connected to shiftitscarrier with respect to said platenmeansand move its'carrler andassociated platen meangrelatively to make an impression, and

a key for each carrierconnected to move its carrier and associatedplaten means relatively to' make an impression.

- 10. In a typewriter, theicombination with a series/of type carriersprovided with a pluralit of type, of a seriesnofimovable platen memersadapted to cooperate concurrently with a plurality of said type, akey bar con nected to move each of said platen members 3 and said typecarrier relatively to make an impression, and a key bar connected toshift said platen a'nd saidtype carrier relatively platen meanscooperating with 'saidtype,

a' group of keys each connectedto move said platen means and. :said typecarriers relatively to make an impression, and another group of keys,each connected to shift said .tively, a plurality of said keys beingoperable. at a single stroke to concurrently make a plurality ofimpressions.

' 12. In a typewriter, the combinationwith a seriesof type carriers,each provided with 'aplurality of type, of av series of movableplatenvmeans cooperating with saidvtype, a group of keys, each connectedto move said platen means and said type carriers relatively to make animpression, and another group of keys, each connected to shift saidplaten means and said type carriers relati vely, a'plurality of saidkeys in either group being operable at a single stroke to concurrentlymake a plurality of impressions. I

In testimony whereof I aifix my signature ,in'the presence of these twowitnesses;

MATTHEW L. ,MASTENp Witnesses: "i v J. H. BRUNINQA,

I A. B. Curran.

